4-(((2-(Diethylamino)ethyl)thio)(hydroxyimino)methyl)-1-methyl-pyridinium chloride HCl 58373-21-0 Pyridinium, 4-(((2-(diethylamino)ethyl)thio)(hydroxyimino)methyl)-1-methyl-, chloride, monohydrochloride S-Diethylaminoethyl ester of N-methylpyridinium chloride-4-thiohydroximic acid hydrochloride